Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010
Cash flows from operating activities:
Net income	$ 20,207	$ 9,423
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,368	3,460
Loss on disposal of assets	69	21
Provision for deferred income taxes	6	(18)
Allowance for doubtful accounts	1	(13)
Stock-based compensation expense	829	540
Stock options income tax benefit		(29)
(Increase) decrease in:
Accounts receivable	(6,954)	(6,634)
Inventories	(1,276)	(1,501)
Income taxes receivable	671	1,485
Other current assets	(352)	(936)
Other assets	(318)	549
Increase (decrease) in:
Accounts payable	1,827	2,301
Accrued expenses and other liabilities	3,526	752
Income taxes payable		203
Other noncurrent liabilities	365	(37)
Net cash provided by operating activities	21,969	9,566
Cash flows from investing activities:
Proceeds from sale of joint venture	1,451
Capital expenditures	(2,811)	(1,325)
Proceeds from dispositions	30
Purchases of marketable securities	(5,500)	(11,126)
Proceeds from sale of marketable securities	4,190	5,390
Net cash used in investing activities	(2,640)	(7,061)
Cash flows from financing activities:
Proceeds from exercise of stock options	61	39
Proceeds from stock issued	281	176
Dividends to shareholders	(4,952)	(3,051)
Stock options income tax benefit		29
Net cash used in financing activities	(4,610)	(2,807)
Effect of exchange rate changes on cash and cash equivalents	1,803	(2,160)
Net increase (decrease) in cash and cash equivalents	16,522	(2,462)
Cash and cash equivalents, beginning of period	33,337	30,446
Cash and cash equivalents, end of period	49,859	27,984
Supplemental disclosure of cash flow information:
Income taxes	9,104	3,406
Supplemental disclosure of noncash transactions:
Common stock issued for shared distribution through accrued expenses and other liabilities	$ 2,412